Simple quiz

You got 13 of 15 possible points.
Your score was: 87 %

Well done!

Question Results

Score 1 of 1

Question:

True/false question

A complex microbiota lives belowground, releasing carbon dioxide to the soil.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

True/false question

De-hardening in spring involves gradual re-hydration of the cells, recovery of photosynthetic capacity and a tight control of water loss.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

The annual cycle of photosynthesis mainly follows

the changes in CO2 concentration.

the changes in light.

the changes in air temperature.

the changes in soil temperature.

Response:

the changes in light.

the changes in soil temperature.

the changes in CO2 concentration.

the changes in air temperature.

Score 1 of 1

Question:

True/false question

In general, the more carbon dioxide that is available to the plant, the faster the rate of photosynthesis - if other factors are favourable.

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Response:

User answer
True
Score 1 of 1

Question:

True/false question

Carbon becomes locked as part of the accumulating plant biomass as plants grow.

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Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

Photoinhibition means the decrease in photosynthesis due to

exposure to shortage of soil moisture.

exposure to excess of CO2.

exposure to excess of light.

exposure to high temperature.

Response:

exposure to high temperature

exposure to excess of light

exposure to shortage of soil moisture

exposure to excess of CO2

Score 1 of 1

Question:

True/false question

Early spring is a tricky time for plants due to the combination of sunny but still quite cold days.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

True/false question

The effect of light on photosynthesis has a clear saturating pattern: more light results in more photosynthesis but eventually leaves cannot take full advantage of all the extra light.

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Response:

User answer
True
Score 1 of 1

Question:

True/false question

Transpiration decreases as air becomes drier.

Answer hidden

Response:

User answer
False
Score 0 of 1

Question:

True/false question

Almost half of the total biomass of a tree may be allocated to the roots.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

What is the source of carbon that is assimilated in photosynthesis?

Atmospheric CO2

Soil nutrients

Soil water

Solar radiation

Response:

Solar radiation

Atmospheric CO2

Soil water

Soil nutrients

Score 0 of 1

Question:

Multiple choice question

Photosynthesis of a tree canopy is driven or influenced by

soil moisture (REW).

photosynthetically active solar radiation (PAR).

the total leaf area (LAI).

air temperature (T).

atmospheric CO2.

air humidity (VPD).

Response:

the total leaf area (LAI).

soil moisture (REW).

air temperature (T).

atmospheric CO2.

air humidity (VPD).

photosynthetically active solar radiation (PAR).

Score 1 of 1

Question:

True/false question

In some part of the stems, some photosynthesis may also occur.

Answer hidden

Response:

User answer
True
Score 1 of 1

Question:

Multiple choice question

To transform atmospheric CO2 into organic molecules, plants can use the energy from

atmospheric oxygen.

soil nutrients.

soil heat.

sun light.

Response:

soil nutrients.

soil heat.

atmospheric oxygen.

sun light.

Score 1 of 1

Question:

Multiple choice question

As plants respire, they release

carbon dioxide.

oxygen.

Response:

oxygen.

carbon dioxide.